//
//  Person.h
//  KVO
//
//  Created by eport on 2021/1/9.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface Person : NSObject

@property(nonatomic,assign)NSInteger age;
@property(nonatomic,copy)NSString *name;



@end

NS_ASSUME_NONNULL_END
